    <div class="row">
        <div class="col-12">
            <pre class="with-hljs"><code class="lang-php">&lt;?php
include(&quot;db/cn.php&quot;);

ob_start();
//session_start(); // Ensure session is started
if (isset($_SESSION[&#039;user_name&#039;], $_SESSION[&#039;user_role&#039;], $_SESSION[&#039;outlet_name&#039;], $_SESSION[&#039;outlet_address&#039;])) {
    $userName = $_SESSION[&#039;user_name&#039;];
    $userRole = $_SESSION[&#039;user_role&#039;];
    $outlet_address = $_SESSION[&#039;outlet_address&#039;];
    $outlet_name = $_SESSION[&#039;outlet_name&#039;];
}

$id = $_GET[&quot;id&quot;];

$rec = mysqli_query($connection, &quot;SELECT * FROM products WHERE id = &#039;$id&#039;&quot;);
$row = mysqli_fetch_array($rec);

if ($_SERVER[&quot;REQUEST_METHOD&quot;] == &quot;POST&quot; &amp;&amp; isset($_POST[&quot;submit2&quot;])) {
    $id = $_POST[&quot;id&quot;];
    $product_id = $_POST[&quot;product_id&quot;];
    $product_name = $_POST[&quot;product_name&quot;];
    $company = $_POST[&quot;company&quot;];
    $length = $_POST[&quot;length&quot;];
    $width = $_POST[&quot;width&quot;];
    $length_feet = $_POST[&quot;lengthfeet&quot;];
    $width_feet = $_POST[&quot;widthfeet&quot;];
    $square_feet = $_POST[&quot;sqarea&quot;];
    $quantity = $_POST[&quot;quantity&quot;];
    $total_quantity = $_POST[&quot;total_quantity&quot;];
    $retail_price = $_POST[&quot;retail_price&quot;];
    $percentage = $_POST[&quot;percentage&quot;];
    $trade_price = $_POST[&quot;trade_price&quot;];
    $total_amount = $_POST[&quot;total_amount&quot;];
    $supplier = $_POST[&quot;supplier&quot;];
    $rack_no = $_POST[&quot;rack_no&quot;];
    $batch_no = $_POST[&quot;batch_no&quot;];
    $date_time = date(&quot;Y-m-d&quot;);
    $login_user = $userName; // Use session value
    $user_role = $userRole; // Use session value
    $outlet_name = $outlet_name; // Use session value
    $outlet_address = $outlet_address; // Use session value
    $product_unit = $_POST[&quot;product_unit&quot;];

    // Update query
    $query = &quot;UPDATE products SET 
        product_id = &#039;$product_id&#039;, 
        product_name = &#039;$product_name&#039;, 
        company = &#039;$company&#039;, 
        length = &#039;$length&#039;, 
        width = &#039;$width&#039;, 
        length_feet = &#039;$length_feet&#039;, 
        width_feet = &#039;$width_feet&#039;, 
        square_feet = &#039;$square_feet&#039;, 
        quantity = &#039;$quantity&#039;, 
        total_quantity = &#039;$total_quantity&#039;, 
        retail_price = &#039;$retail_price&#039;, 
        percentage = &#039;$percentage&#039;, 
        trade_price = &#039;$trade_price&#039;, 
        total_amount = &#039;$total_amount&#039;,
        product_unit = &#039;$product_unit&#039;,
        supplier = &#039;$supplier&#039;, 
        rack_no = &#039;$rack_no&#039;, 
        batch_no = &#039;$batch_no&#039;, 
        date_time = &#039;$date_time&#039;, 
        login_user = &#039;$login_user&#039;, 
        user_role = &#039;$user_role&#039;, 
        outlet_name = &#039;$outlet_name&#039;, 
        outlet_address = &#039;$outlet_address&#039; 
    WHERE id = &#039;$id&#039;&quot;;

    if (mysqli_query($connection, $query)) {
        // Purchase updated successfully
        echo &#039;&lt;script type=&quot;text/javascript&quot;&gt;window.location.href=&quot;addproduct.php&quot;;&lt;/script&gt;&#039;;
       // header(&quot;location:addproduct.php&quot;);
        exit();
    } else {
        echo &quot;Error updating product: &quot; . mysqli_error($connection);
    }
}

ob_end_flush();
?&gt;

&lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD XHTML 1.0 Transitional//EN&quot; &quot;http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd&quot;&gt;
&lt;html xmlns=&quot;http://www.w3.org/1999/xhtml&quot;&gt;
&lt;head&gt;
&lt;meta http-equiv=&quot;Content-Type&quot; content=&quot;text/html; charset=utf-8&quot; /&gt;
&lt;title&gt;New Purchase&lt;/title&gt;
&lt;link rel=&quot;stylesheet&quot; href=&quot;https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css&quot;&gt;
&lt;link rel=&quot;stylesheet&quot; href=&quot;https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css&quot;&gt;
&lt;link rel=&quot;stylesheet&quot; href=&quot;css/custom_css.css&quot; /&gt;
    &lt;!-- QRCode.js --&gt;
    &lt;script src=&quot;https://cdn.rawgit.com/davidshimjs/qrcodejs/gh-pages/qrcode.min.js&quot;&gt;&lt;/script&gt;
&lt;/head&gt;

&lt;style&gt;
 #product-container-wrapper {
    max-height: 700px; /* Adjust the maximum height as needed */
    overflow-y: auto; /* Enable vertical scroll when content overflows */
}
/* Custom styles for sidebar */    /* Custom styles for sidebar */
    .sidebar {
        width: 100px;
        background: linear-gradient(360deg, #060606, #0A5064);
        position: fixed;
        bottom: 0;
        top: 60px;
        transition: transform 0.3s ease-in-out;
        transform: translateX(0);
        z-index: 1;
        height: 100%;
        border-radius: 0px;
		   transition: transform 0.3s ease-in-out, width 0.3s ease-in-out;
    }.sidebar.hide {
      transform: translateX(-100px); /* Move sidebar out of the viewport when it is hidden */
    }
      .sidebar .nav-item {
    padding: 10px 0 ;
    text-align: center;
    position: relative;
	font-size:12px;
}
    .sidebar .nav-link {
      color: #fff;
      position: relative; /* Ensure icon and text are positioned relative to the nav link */
      z-index: 2; /* Ensure the text and icon are above the hover background */
    }
    .sidebar .nav-link i {
      margin-bottom: 5px; /* Adjust the margin of the icon */
    }
    /* Custom styles for hover effect */
    .sidebar .nav-item:hover:after {
      background-color: #fff;
      content: &#039;&#039;;
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 100%;
      z-index: 1; /* Ensure the hover background is below the text and icon */
    }
    .sidebar .nav-item:hover .nav-link {
      color: #0A5064;
    }
    /* Custom styles for divider */
    .sidebar .nav-item:after {
      content: &quot;&quot;;
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 1px;
      background-color: #fff;
      transition: height 0.3s ease-in-out; /* Transition effect for smooth animation */
    }
    /* Custom styles for header */    .header {
        background: linear-gradient(270deg, #060606, #0A5064);
        color: #fff;
        padding: 10px;
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 2;
        height: 69px;
        box-shadow: #FFF 2px 0px 0px 0px;
        /* Ensure header appears above sidebar */
    }
    .header .navbar-toggler {
      color: #fff;
    }
    .header .navbar-toggler-icon {
      color: #fff; /* Set the color of the toggle button to white */
    }
    .header .navbar-toggler.white {
      color: #fff !important; /* Ensure the toggle button is white */
    }
    .header .navbar-brand {
      color: #fff; /* Set navbar brand text color to white */
    }
    .header .nav-item .nav-link {
      color: #fff; /* Set nav link text color to white */
    }
    .main-content {
      margin-top: 50px; /* Height of fixed header + padding */
      margin-left: 100px; /* Width of sidebar */
      padding-top: 30px; /* Height of fixed header */
    }
	/* Custom styles for search bar */
    .search-container {
      display: flex;
      align-items: center;
      width: 300px;
      margin: 2px auto;
    }
    .search-input {
      width: 100%;
      padding: 10px 30px 10px 10px; /* Adjust padding to accommodate the icon */
      border: 1px solid #ccc;
      border-radius: 20px;
      font-size: 16px;
    }
    .search-icon {
      position: relative;
      left: -25px; /* Adjust the position of the icon */
      color: #aaa;
    }
    .search-icon i {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
    }
.btn-dark
         {
			 background:#0A5064;
			 color:#fff;
			 border: 1px solid #0A5064;
                 	}
		.btn-dark:hover{
			background:#fff;
			 color:#0A5064;
			 border:1px solid #0A5064;
			}	
			.bg-dark2{
			background:#8A1218;
			color:#fff;	
				}	
	
	 .modal-content {
            animation: modal-animation 0.5s;
        }

        @keyframes modal-animation {
            from {
                opacity: 0;
                transform: scale(0.8);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }
		label{font-size:12px; font-weight:600;}
		&lt;/style&gt;
&lt;body&gt;

&lt;?php include(&quot;common/hd.php&quot;); ?&gt;
&lt;!-- Sidebar --&gt;
&lt;?php include(&quot;common/sd.php&quot;); ?&gt;
&lt;div class=&quot;main-content&quot;&gt;
    &lt;div class=&quot;container&quot;&gt;
        &lt;div class=&quot;row&quot;&gt;
            &lt;div class=&quot;col-sm-9&quot;&gt;
                &lt;h3 style=&quot;color:#212529;&quot;&gt; Update Product&lt;/h3&gt;
            &lt;/div&gt;
            &lt;div class=&quot;col-sm-3&quot;&gt;
                &lt;a href=&quot;addproduct.php&quot;&gt;&lt;button type=&quot;button&quot; class=&quot;btn btn-dark&quot; style=&quot;float:left;&quot;&gt;&lt;i class=&quot;fa fa-arrow-left&quot;&gt;&lt;/i&gt;&lt;/button&gt;&lt;/a&gt;
            &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;&lt;br /&gt;
    &lt;div class=&quot;container&quot;&gt;
        &lt;div class=&quot;row&quot;&gt;
            &lt;div class=&quot;col-sm-1&quot;&gt;&lt;/div&gt;
            &lt;div class=&quot;col-sm-5&quot;&gt;
                &lt;form method=&quot;post&quot; action=&quot;product_update.php?id=&lt;?php echo $id; ?&gt;&quot; enctype=&quot;multipart/form-data&quot;&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Product ID&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;product_id&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;product_id&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Product Name&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;product_name&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;product_name&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Company&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;company&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;company&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    
                    &lt;div class=&quot;row&quot;&gt;
                        &lt;div class=&quot;col-sm-6 form-group&quot;&gt;
                            &lt;label&gt;Length in Inch&lt;/label&gt;
                            &lt;input type=&quot;text&quot; name=&quot;length&quot; class=&quot;form-control&quot; placeholder=&quot;Length&quot; value=&quot;&lt;?php echo $row[&quot;length&quot;]; ?&gt;&quot; /&gt;
                        &lt;/div&gt;
                        &lt;div class=&quot;form-group col-sm-6&quot;&gt;
                            &lt;label&gt;Width in Inch&lt;/label&gt;
                            &lt;input type=&quot;text&quot; name=&quot;width&quot; class=&quot;form-control&quot; placeholder=&quot;Width&quot;  value=&quot;&lt;?php echo $row[&quot;width&quot;]; ?&gt;&quot;/&gt;
                        &lt;/div&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;row&quot;&gt;
                        &lt;div class=&quot;col-sm-6 form-group&quot;&gt;
                            &lt;label&gt;Length in Feets&lt;/label&gt;
                            &lt;input type=&quot;text&quot; name=&quot;lengthfeet&quot; class=&quot;form-control&quot; placeholder=&quot;Length&quot; value=&quot;&lt;?php echo $row[&quot;length_feet&quot;]; ?&gt;&quot; /&gt;
                        &lt;/div&gt;
                        &lt;div class=&quot;form-group col-sm-6&quot;&gt;
                            &lt;label&gt;Width in Feets &lt;/label&gt;
                            &lt;input type=&quot;text&quot; name=&quot;widthfeet&quot; class=&quot;form-control&quot; placeholder=&quot;Width&quot; value=&quot;&lt;?php echo $row[&quot;width_feet&quot;]; ?&gt;&quot; /&gt;
                        &lt;/div&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Square / Feet Area&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;sqarea&quot; class=&quot;form-control&quot; readonly  value=&quot;&lt;?php echo $row[&quot;square_feet&quot;]; ?&gt;&quot;/&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Quantity&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;quantity&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;quantity&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Total Quantity in Square Feet&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;total_quantity&quot; id=&quot;total_quantity&quot; class=&quot;form-control&quot; readonly value=&quot;&lt;?php echo $row[&quot;total_quantity&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    
                &lt;/div&gt;
                &lt;div class=&quot;col-sm-5&quot;&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Retail Price Per Sq/Feet&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;retail_price&quot; id=&quot;retail_price&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;retail_price&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;% Apply&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;percentage&quot; id=&quot;percentage&quot; class=&quot;form-control&quot; readonly value=&quot;&lt;?php echo $row[&quot;percentage&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Trade Price Per Sq/Feet&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;trade_price&quot; id=&quot;trade_price&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;trade_price&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Total Amount&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;total_amount&quot; id=&quot;total_amount&quot; class=&quot;form-control&quot; readonly value=&quot;&lt;?php echo $row[&quot;total_amount&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Supplier&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;supplier&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;supplier&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;  
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Rack No&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;rack_no&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;rack_no&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Batch No&lt;/label&gt;
                        &lt;input type=&quot;text&quot; name=&quot;batch_no&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;batch_no&quot;]; ?&gt;&quot; /&gt;
                    &lt;/div&gt;
                    &lt;div class=&quot;form-group&quot;&gt;
                        &lt;label&gt;Product Unit&lt;/label&gt;
                        &lt;select name=&quot;product_unit&quot; class=&quot;form-control&quot; value=&quot;&lt;?php echo $row[&quot;product_unit&quot;]; ?&gt;&quot;&gt;
                            &lt;option value=&quot;&quot;&gt;Select&lt;/option&gt;
                            &lt;option value=&quot;piece&quot;&gt;Piece&lt;/option&gt;
                            &lt;option value=&quot;sq/ft&quot;&gt;Sq/Ft&lt;/option&gt;
                        &lt;/select&gt;
                        
                    &lt;/div&gt;
                    &lt;hr /&gt;
                    &lt;input type=&quot;hidden&quot; name=&quot;id&quot; value=&quot;&lt;?php echo $id; ?&gt;&quot; /&gt;
                    &lt;input type=&quot;hidden&quot; name=&quot;login_user&quot; value=&quot;&lt;?php echo $userName; ?&gt;&quot; /&gt;
                    &lt;input type=&quot;hidden&quot; name=&quot;user_role&quot; value=&quot;&lt;?php echo $userRole; ?&gt;&quot; /&gt;
                    &lt;input type=&quot;hidden&quot; name=&quot;outlet_name&quot; value=&quot;&lt;?php echo $outlet_name; ?&gt;&quot; /&gt;
                    &lt;input type=&quot;hidden&quot; name=&quot;outlet_address&quot; value=&quot;&lt;?php echo $outlet_address; ?&gt;&quot; /&gt;
                    &lt;button class=&quot;btn btn-dark form-control&quot; name=&quot;submit2&quot; type=&quot;submit&quot;&gt;Update Product&lt;/button&gt;
                &lt;/form&gt;
            &lt;/div&gt;
            &lt;div class=&quot;col-sm-1&quot;&gt;&lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;
&lt;/div&gt;               
&lt;/body&gt;
&lt;script&gt;
    function calculateSquareFeet() {
        let lengthFeet = parseFloat(document.querySelector(&#039;input[name=&quot;lengthfeet&quot;]&#039;).value) || 0;
        let widthFeet = parseFloat(document.querySelector(&#039;input[name=&quot;widthfeet&quot;]&#039;).value) || 0;
        let lengthInch = parseFloat(document.querySelector(&#039;input[name=&quot;length&quot;]&#039;).value) || 0;
        let widthInch = parseFloat(document.querySelector(&#039;input[name=&quot;width&quot;]&#039;).value) || 0;

        let lengthInInches = lengthFeet &gt; 0 ? lengthFeet * 12 : lengthInch;
        let widthInInches = widthFeet &gt; 0 ? widthFeet * 12 : widthInch;

        if (lengthFeet &gt; 0) {
            document.querySelector(&#039;input[name=&quot;length&quot;]&#039;).value = lengthInInches.toFixed(2);
        }
        if (widthFeet &gt; 0) {
            document.querySelector(&#039;input[name=&quot;width&quot;]&#039;).value = widthInInches.toFixed(2);
        }

        let areaInSquareFeet = (lengthInInches / 12) * (widthInInches / 12);

        document.querySelector(&#039;input[name=&quot;sqarea&quot;]&#039;).value = areaInSquareFeet.toFixed(2);

        calculateTotalQuantity();
    }

    function calculateTotalQuantity() {
        let area = parseFloat(document.querySelector(&#039;input[name=&quot;sqarea&quot;]&#039;).value) || 0;
        let quantity = parseFloat(document.querySelector(&#039;input[name=&quot;quantity&quot;]&#039;).value) || 0;

        let totalQuantity = area * quantity;

        document.querySelector(&#039;input[name=&quot;total_quantity&quot;]&#039;).value = totalQuantity.toFixed(2);

        calculateTotalAmount();
    }

    function calculateTradePercentage() {
        let retail_price = parseFloat(document.getElementById(&quot;retail_price&quot;).value) || 0;
        let trade_price = parseFloat(document.getElementById(&quot;trade_price&quot;).value) || 0;

        if (retail_price &gt; 0 &amp;&amp; trade_price &gt; 0) {
            let percentage = ((retail_price - trade_price) * 100 / retail_price).toFixed(2);
            document.getElementById(&quot;percentage&quot;).value = percentage;
        } else {
            document.getElementById(&quot;percentage&quot;).value = &#039;&#039;;
        }
    }

    function calculateTotalAmount() {
        let total_quantity = parseFloat(document.getElementById(&quot;total_quantity&quot;).value) || 0;
        let trade_price = parseFloat(document.getElementById(&quot;trade_price&quot;).value) || 0;

        if (total_quantity &gt; 0 &amp;&amp; trade_price &gt; 0) {
            let total_amount = (total_quantity * trade_price).toFixed(2);
            document.getElementById(&quot;total_amount&quot;).value = total_amount;
        } else {
            document.getElementById(&quot;total_amount&quot;).value = &#039;&#039;;
        }
    }

    document.addEventListener(&#039;DOMContentLoaded&#039;, (event) =&gt; {
        document.querySelector(&#039;input[name=&quot;length&quot;]&#039;).addEventListener(&#039;input&#039;, calculateSquareFeet);
        document.querySelector(&#039;input[name=&quot;width&quot;]&#039;).addEventListener(&#039;input&#039;, calculateSquareFeet);
        document.querySelector(&#039;input[name=&quot;lengthfeet&quot;]&#039;).addEventListener(&#039;input&#039;, calculateSquareFeet);
        document.querySelector(&#039;input[name=&quot;widthfeet&quot;]&#039;).addEventListener(&#039;input&#039;, calculateSquareFeet);
        document.querySelector(&#039;input[name=&quot;quantity&quot;]&#039;).addEventListener(&#039;input&#039;, calculateTotalQuantity);
        document.getElementById(&quot;retail_price&quot;).addEventListener(&#039;input&#039;, calculateTradePercentage);
        document.getElementById(&quot;trade_price&quot;).addEventListener(&#039;input&#039;, () =&gt; {
            calculateTradePercentage();
            calculateTotalAmount();
        });
    });

    document.addEventListener(&quot;DOMContentLoaded&quot;, function () {
        var sidebar = document.getElementById(&quot;sidebar&quot;);
        var overlay = document.createElement(&quot;div&quot;);
        overlay.classList.add(&quot;overlay&quot;);
        document.body.appendChild(overlay);

        function toggleSidebar() {
            sidebar.classList.toggle(&quot;hide&quot;);
            overlay.classList.toggle(&quot;hide&quot;);

            var mainContent = document.querySelector(&quot;.main-content&quot;);
            if (sidebar.classList.contains(&quot;hide&quot;)) {
                mainContent.style.marginLeft = &quot;0&quot;;
            } else {
                mainContent.style.marginLeft = &quot;100px&quot;; // Width of the sidebar
            }
        }

        overlay.addEventListener(&quot;click&quot;, function () {
            toggleSidebar();
        });

        var navbarToggler = document.querySelector(&quot;.navbar-toggler&quot;);
        navbarToggler.addEventListener(&quot;click&quot;, function () {
            toggleSidebar();
        });

        function checkScreenSize() {
            if (window.innerWidth &gt; 768) {
                sidebar.classList.remove(&quot;hide&quot;);
                overlay.classList.remove(&quot;hide&quot;);
            } else {
                sidebar.classList.add(&quot;hide&quot;);
                overlay.classList.add(&quot;hide&quot;);
            }
        }

        checkScreenSize();
        window.addEventListener(&quot;resize&quot;, checkScreenSize);
    });

    function toggleSubMenu(element) {
        $(element).next(&#039;.sub-menu&#039;).slideToggle();
    }
&lt;/script&gt;
&lt;!-- jQuery library --&gt;
&lt;script src=&quot;https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js&quot;&gt;&lt;/script&gt;
&lt;script src=&quot;https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js&quot;&gt;&lt;/script&gt;
&lt;!-- Popper JS --&gt;
&lt;script src=&quot;https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js&quot;&gt;&lt;/script&gt;
&lt;/html&gt;
</code></pre>        </div>
    </div>